MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) TRANSMISSION METHOD AND APPARATUS
First Claim
1. An uplink multiple-input multiple-output (MIMO) transmission method, comprising:
- sending, by a user equipment (UE), first data to a NodeB in a first process in a hybrid automatic repeat request round trip time (HARQ_RTT);
receiving, by the UE, an acknowledgement character related to the first data and returned by the NodeB; and
determining, by the UE according to the acknowledgement character and a rank value to be used for next transmission, data transmission of the first process in a next HARQ_RTT.
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Abstract
Embodiments of the present invention disclose an uplink MIMO transmission method, including: sending, by a UE, first data to a base station (NodeB) in a first process in an HARQ_RTT, and receiving an acknowledgement character related to the first data and returned by the NodeB; and determining, by the UE according to the acknowledgement character and a rank value to be used for next transmission, data transmission of the first process in a next HARQ_RTT. The present invention further provides a corresponding user equipment and base station. Implementing the method and apparatus provided by the present invention can enable a UE to correctly perform HARQ transmission using MIMO, thereby effectively ensuring performance of MIMO.
24 Citations
20 Claims
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1. An uplink multiple-input multiple-output (MIMO) transmission method, comprising:
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sending, by a user equipment (UE), first data to a NodeB in a first process in a hybrid automatic repeat request round trip time (HARQ_RTT); receiving, by the UE, an acknowledgement character related to the first data and returned by the NodeB; and determining, by the UE according to the acknowledgement character and a rank value to be used for next transmission, data transmission of the first process in a next HARQ_RTT. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A user equipment, comprising:
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a processing module, configured to send first data to a NodeB in a first process in a hybrid automatic repeat request round trip time (HARQ_RTT), and receive an acknowledgement character related to the first data and returned by the NodeB; and a determining module, configured to determine, according to the acknowledgement character and a rank value to be used for next transmission, data transmission of the first process in a next HARQ_RTT. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A base station, comprising:
a control module, configured to detect channel code of a first enhanced dedicated channel E-DCH dedicated physical control channel and a second enhanced dedicated channel (E-DCH) dedicated physical control channel, so as to determine first stream data and second stream data. - View Dependent Claims (20)
Specification